Shin, Eonwoo
Sung, Changhwan
Son, Hye Joo
Lee, Dong Yun
Chae, Sun Young
Moon, Dae Hyuk
Article History
Received: 31 October 2018
Revised: 16 April 2019
Accepted: 6 May 2019
First Online: 27 May 2019
Compliance with Ethical Standards
:
: Eonwoo Shin, Hye Joo Son, Dong Yun Lee, Sun Young Chae, and Dae Hyuk Moon declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
: The institutional review board at our institute approved this retrospective study, and the requirement to obtain informed consent was waived.